#include <stdio.h>
int main(){
    int num=10;
    int* p1=&num;
    int** p2=&p1;
    printf("num的地址=%p\n",&num);
    printf("p1的值=%p\n",p1);
    printf("p1的地址=%p\n",&p1);
    printf("p2的值=%p\n",p2);
}